Home / 2,638,219.20-3,956,018.40-840,868.80

Finding the Fourth Proportional to 2,638,219.20, 3,956,018.40 and 840,868.80

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Solution

The fourth proportional to 2,638,219.20, 3,956,018.40 and 840,868.80 is: 1,260,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,219.20 : 3,956,018.40 = 840,868.80 : x
  2. Step 2: Convert to fraction form
    2,638,219.20/3,956,018.40 = 840,868.80/x
  3. Step 3: Cross multiply
    2,638,219.20x = 3,956,018.40 × 840,868.80
  4. Step 4: Simplify right side
    2,638,219.20x = 3,326,492,444,785.92
  5. Step 5: Solve for x
    x = 3,326,492,444,785.92/2,638,219.20
  6. Step 6: Final answer
    x = 1,260,885.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.